var gameobject = instance_create(0, 0, obj_GameObject);
gameObjectConstructor (42,3,12,19,7,11, gameobject);

assert ("Is position x 42? It should be.", gameobject.tileX == 42)
assert ("Is position y 3? It should be.", gameobject.tileY == 3)
assert ("Is velocity x 12? It should be.", gameobject.velX == 12)
assert ("Is velocity y 19? It should be.", gameobject.velY == 19)
assert ("Is sprite ID 7? It should be.", gameobject.spriteID == 7)
assert ("Is Game Object ID 11? It should be.", gameobject.gameObjectID == 11)